package org.apache.lucene.analysis.cn.smart;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.util.Map;
import org.apache.lucene.analysis.TokenFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.cn.smart.WordTokenFilter;
import org.apache.lucene.analysis.util.TokenFilterFactory;
/**
* Factory for the SmartChineseAnalyzer {@link WordTokenFilter}
* <p>
* Note: this class will currently emit tokens for punctuation. So you should either add
* a WordDelimiterFilter after to remove these (with concatenate off), or use the
* SmartChinese stoplist with a StopFilterFactory via:
* <code>words="org/apache/lucene/analysis/cn/smart/stopwords.txt"</code>
* @lucene.experimental
*/
public class SmartChineseWordTokenFilterFactory extends TokenFilterFactory {
/** Creates a new SmartChineseWordTokenFilterFactory */
public SmartChineseWordTokenFilterFactory(Map<String,String> args) {
super(args);
if (!args.isEmpty()) {
throw new IllegalArgumentException("Unknown parameters: " + args);
}
}
@Override
public TokenFilter create(TokenStream input) {
return new WordTokenFilter(input);
}
}